Forecast Last Updated at Saturday, January 23, 2021 at 4:51PM

Chilly Saturday

Colder air arrived Friday night leading to a chilly Saturday. Valleys will be colder than mountaintops tonight under mostly clear skies. Clouds increase Sunday, and rain develops Sunday night. Expect periods of rain Monday ending early Tuesday morning. Tuesday promises to be one of the mildest days this month, but we're watching Wednesday night into Thursday for wintry precipitation potential.

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Saturday Hi: 36 Lo: 18 Mostly clear; Colder in valleys than mountaintops; Light SW wind

Sunday Hi: 42 Lo: 34 Increasing afternoon clouds; Rain developing Sun. night; SW wind 5-15 mph

Monday Hi: 47 Lo: 44 Cloudy; Rain; Rising temps Mon. night; SW wind 5-15 mph, becoming west and gusty late Mon. night

Tuesday Hi: 56 Lo: 36 Early light showers possible; Then decreasing clouds; Unseasonably mild daytime

Wednesday Hi: 48 Lo: 29 Clouds return; Turning colder; Wintry mix or snow developing Wed. night

Further Out

Thursday - Daytime snow, especially AM; Then clearing; Cold; High in the lower 30s; Low near 20 degrees
Friday - Clearing skies; Seasonal temperatures; High in the lower 40s; Low in the mid 20s

Forecast Discussion

A dry front moved through Friday and colder air arrived Friday night. Canadian high pressure moves east across the Ohio Valley this weekend into the Atlantic Sunday night. We have a chilly Saturday and milder temperatures by Sunday afternoon. Radiational cooling (light winds and cold air sinking into valleys) makes valleys colder than mountaintops tonight.

Low pressure in the Southwest U. S. moves across the Ohio Valley Monday. It pushes a warm front across the region late Monday. Clouds increase Sunday and rain develops Sunday night. Monday has periods of rain ending late Monday night or early Tuesday morning.

The next push of colder air is delayed until Wednesday making Tuesday an unseasonably pleasant day after the rain exits early. Temperatures will trend cooler Wednesday with increasing clouds.

Low pressure in the Western Gulf moves across Georgia early Thursday and into the Atlantic by late Thursday. Precipitation develops Wednesday night as colder air arrives. A wintry mix of precipitation changing to snow with snow showers continuing into Thursday. It's too early serious speculation about snow amounts--light to moderate accumulations is the range of possibilities.

Skies clear Thursday evening. Friday looks mostly clear and seasonably chilly.

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